Effect of deep ripping on pasture production.

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DAFWA Collections

Grains and field crops


87GE77, Deep ripping resulted in increased growth in all cases except for the last sample of serradella. The lack of response to ripping at this time appeared to be due to reduced moisture availability on the ripped plots. This may have been caused by the earlier vigorous growth using more of the water stored in the lower levels of the soil profile. If the year had been more favourable th.7, ripped plots may have sustained the increased production until later in the year. Harbinger medic responded the most to ripping especially earlier in the year. Ripping of the soil enabled the medic to develop a greater proportion of their roots below 40cm depth. Serradella likewise developed deeper roots earlier on the ripped plots, however there was little difference at the last sampling time. Nungarin sub-clover responded the least to the ripping, with the majority of its roots developing in the top 20cm regardless of the soil condition.

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Western Australia

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